Yesterday I created a full VaporWave desktop thanks to this theme, and it looks really really good. It's a form of art, never mind gender. Eliverlara created two other theme : Nordic and Ant-dracula, wich are more greyich if you prefer these colors. However, the idea is to create your own themes (inspired by this theme if you want, but in this case you have to mentioned the creator in the description)

you must change all occurrences of color in the color scheme file (you can do it directly from the plasma configuration window) and if you are using kvantum you should also change the color directly from the .svg file